I have a new HP Envy x360 ay003nd, which has the latest AMD Ryzen 7 4700U apu and a 1920x1080 13" touch screen.
I installed Ubuntu 20.04 using USB stick, chose to erase drive completely (no dual boot) after verifying using “Try Ubuntu” that everything works. I already performed updates via settings.
During tryout, I noticed Settings > Power > Screen Brightness the slider has no effect, the screen is always at max. Night mode on/off also has no effect. The quick buttons (fn) work just fine, popping up for volume, brightness etc. But the quick buttons have no effect for brightness (the popup shows the sliding bar changing, but no effect).
After installation, same, brightness settings have no effect on actual brightness.
How can I debug this?
I did not mess with drivers at all. This is just a brand new full installation, without any modifications.
Also the fan(s) are constantly running, quite high, even though while I am typing this on Firefox with only 1 tab open, all 8 CPUs show activity between 2-8% sometimes going into 12-15%.
No other application opened after boot. I do not know the temperature, since
sudo sensors-detect + YES to every question did not detect ANY sensors. Perhaps because its too new?
Anything I can do about the high fan activity?
Because of the fan activity and the annoying high pitch that comes with it, I am even considering returning the laptop, but it would be a shame since there is no alternative at this pricepoint e1000 (incl 21% VAT in my country).
edit: hardinfo shows:
While charging, 88%
Hibernate and suspend don’t seem to work. Suspend turns of display, nothing else, hibernate shows screen lock. Nothing else happens.